Can I cancel contract with contractor in 72 hrs? NY state

[Hahna Reyes]

Hi!! I just signed a contract and paid the deposit with the roof contractor for a project this past weekend. 
And I just found out in BBB that the owner had different company which had many complains in the past. The company’s accreditation was revoked a few years ago.

1. Can I cancel the contract without cancellation fee if canceled in writing within 3 business day midnight? 
https://ag.ny.gov/consumer-fra...

2. If so written cancellation notice via text is sufficient ? Or it has to be an email?

3. If the company refused to return deposit what kind of option do I have?

No clause regarding cancellation in the contract.

Really appreciate if anyone who have similar experience or knowledgeable can share your second opinion.

Thank you in advance!